Miner s knife



RUNR'S KWE. (Application Bled Jam 25, 1897.)

me man Elven-"127" HA Rm MA R WN,

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c. 1. Urli-TRD rA'rns Arena @einen HARRY MARTIN, or 'SALT LAKE orrY, UTAH.

' MINERS Kants;

- SECIIGTION forming part of Letters Patenti'lto; 613,698, dated November 8, 189g I Application filed January 25 1897.' ASerial No. 620,656. (lio model.)

' To a/ZZ whom it may concern;

Be it known'that I, HARRY MARTIN, of Salt Lake City, Utah, have invented an Improvement -in Miners Knives, of which the follow- 5 ing'is a specitication.

My invention relates to a combinatiomtool for the use of miners or others engaged in blasting, and is adapted for splitting, cutting,

and reducing the end of the blasting-fuse, for

1e crimping the dynamite-cap onto the fuse, and

. ingdrawings praotioale'nbedi'nent thereof,"

z but'd'esire it to be understood that l do not limit myself to the exact construction which I have therein, for the sake of illustration,

j delineated.

In'the drawings, Figure 1 is a perspective e5' View of my combined tool, showing the fuse cutter and seater open. Fig. 2 is a plan View of the back of the tool, showing the cutter ,and seater closed Fig. 3 is a longitudinal section on line 3 3 of Fig. 2. Fig. 4 is a trans- 30 versev section on linea 4 of Fig. 3. Fig..5 isa similar section on line 5v5 of Fig. 3. Fig. 6 is a plan View of the back-springs. Fig. 7 is a sectional View on line 7 7 of Fig. 3. v Referring to the drawings, wherein j like 3 5 reference characters refer to similar `parts throughout the several Views, 1` represents l the sides of a pocket-knife handle, which may be of the usual' or any desired material and similar generally t0 the ordinary pocket- 4e knifehandle-p'ieces. Betweenthese sidebancile-pieces 1 arehinged'blades 2 and 3,- as inan ordinary pocket-knife. 4 Ltindicate the back-springs for the blades 2 and3, and 4f* is a division-plate between 45 the blades Zand 3 at ltheirhinge ende.`

' v The back-springs 4K4, it vw'vill 'be seen from -the drawings, are of peculiar shape and are not located, as in the ordinary knife, iiush with` the backedges of the side handlepieces,

5o butla're situated intermediate the edges of the sides, so that the back edges of the latter "extendfbeyond .the springs and constitute,

' with the back-springs, a sort of trough or bex.

The springs d are concaved or grooved on their back surfaces, as indicated at t, to forni a rounded seat or support for the fuse `when the latter is being split. The back edges of the side pieces 1 are provi' ed with rounded or substantially semicircular notches 5 and G, respective notches in the two side pieces bei ingin alinement. Reg stering with these notches 5 and G Kare similar transverse notches 7 and 8 in the back-springs a. -Pivoted on a this notch 1l, projecting from the back. ci

the tool, is a crimping-pin 12. Projecting 'rointhe' tee'i l'is a shert'blade 13, adapted to entera slot 13, formed in or between the backsprings et 4f.. This knife-blade is so positioned on' the tool 10 that when the latter is being closed it crosses the line of the notches 6 and 8 in the hand-le and back springs. A spring 11i, secured to the backspring 4,- bears against the under side ef the tool 10 and ltends to force the latter oi'itward orlto its open position. To hold the vtool closed Within the handle against the tension of this spring 14, I provide a trigger or iin; ger-piece 15,pivoted between the hanizilesides dey and provided With a spring 152, bearing' den y veniently against the back-spring e, and with lgs a projection or lug 15b, adapted to engage in y,

to'retain the latter in its closed posit-ien. The hinge-lug of the tool 16 is provided with a shoulder 16, s o arranged that when the tool 4 andbearing upon the tool 1G in a manner- 16 is opened to a position at right angles to the handle the spring 1'? will bear thereon and retain the seating-tool in its open position..

l' the tool has 'beenreleased, asbefore described.

-the yelled end of the fuse is inserted into a seat inthe cartridge for the cap, the tool 10 is closed and the tool 16 brought te its open In order to insure thequick ignition of ftheE fuse at the proper timeof lighting the same, it is customary, if' not necessary, to split the end ofA the fuse. For this purpose the blade 13 is made use of, the fuse being placed lon-l gitudinallyinthe trough formed bythe knifef; handle sides 1 and the back-springs 4 4 afterfl It will be seen that presslfre on the tooljlO will cause the blade to pass through the of the fuse, splitting the same longitudinally: without loss of powder.

To reduce the end of the fuse, which it isy at times necessary to do in order that the same may be inserted into the dynamite-cap,

one of the notches 5, with its end abuttingv against the crimping-pin 12. By a gentle pressure upon the tool 10 and turning of the' fuse the end of the latter is reduced., so that it can be readily vinserted into the cap.

"N hen it is desired to crimp or secure ythev sap on the fuse, the former, with the cap ap-v plied thereto, is placed transversely of the handle in the notches and 7 and the 'tools forced so that the crimping-pin 12 passes. through the cap,V driving .the metal 4thereof into the fuse, thus holding the two together.

1 When'it is desired to use the tool to make position, when by using the seating-tool as a drill or gimlet -a proper seat can be formed in the cartridge.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,'isl v. 1

1. In a combined pocket-knife and miners tool, the combination with the knife-handle sides, of a backp-spring between the sides in- .termediate the front and back edges of the sides, a tool 10 pivoted'between the handle sidestirfrear of the back-spring. and provided with a longitudinal blade. adapted, when closed, to project intova slot formed in the back-spring. v

2. In a combined pocket-knife and miners tool, the combination fof separated handle Aside .pieces provided at the back edgethereof with notches 5 and 6, back-springs secured -between the handle sides and provided with notches 7 and 8 registering with the notches 5 and 6, a tool 10 pivoted between the handle sides and provided'with a longitudinal blade adapted to cross the line of the notches 6, and als) provided with a notch 11 adapted to reg.- ister with the notches 5, and .with ing-pin 12 in said notch 11.

3. The combination with a pocket-knife handle and bladetherein of a back-sprin g for said blade situated intermediate the edges of the handle, a cutting-tool pivoted between the handle sides in rear of said back-spring,

a seating-tool also pivoted between said handle sides in rear of said back-spring-spring tending to force outward said cutting-tool and a trigger for holding said tool in closed position.

HARRY MARTIN- y Witnesses:

MARY J. MARTIN, VERNIE R. ROSE.

' a crimp- 

